Abstract

Vibrational energy distribution of IR MP-excited CF₂Cl₂ is studied when pumping molecules through ν₁ and ν₈ modes. In both cases the intermolecular distribution is found to be in a state of nonequilibrium consisting of ensembles of “hot” and “cold” molecules. The structure of the “cold” ensemble is different when ν₁ and ν₈ modes are pumped. Statistical intramolecular energy distribution caused by stochastization of vibrational motion is found for “hot” molecules. The estimated value of stochastization onset energy equals E_th ≤ 7800 cm⁻¹.